A data center engineer is configuring OSPF on a Junos device. The device has multiple loopback interfaces, and the engineer wants to ensure that the OSPF router ID is stable and predictable. The engineer has already configured the loopback interface lo0.0 with the address 10.255.255.1/32. Which configuration will guarantee that OSPF uses this address as the router ID?

set protocols ospf router-id 10.255.255.1

set protocols ospf area 0 interface lo0.0 passive

set interfaces lo0 unit 0 family inet address 10.255.255.1/32

set routing-options router-id 10.255.255.1

An OSPF neighbor is stuck in the ExStart state. Which configuration issue is the most likely cause?

Mismatched OSPF authentication key

MTU mismatch between the two routers

A network engineer is configuring BGP on a Junos router. The router will peer with two different service providers, each with a different AS number. The engineer wants to use peer groups to simplify the configuration. How should the engineer configure the peer groups?

Create one peer group with type internal and set peer-as to the local AS.

Create one peer group with type external and use the local-as statement to differentiate the peers.

Create two peer groups, one for each service provider, with the appropriate peer-as for each.

Create one peer group with type external and set peer-as to 0.

An engineer is troubleshooting an OSPF adjacency issue between two Junos routers. The neighbor state is stuck in ExStart. The engineer suspects a mismatch in OSPF parameters. Which command should the engineer use to verify the OSPF interface parameters on both routers?

show configuration protocols ospf

Juniper NetworksCertified Associate, Data Center

Domain 4Objective 4

Configuration and Monitoring JN0-281 Practice Questions (Page 2)

Part of the Data Center Routing Protocols (BGP/OSPF) domain, which makes up ~13% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~5–8 in this domain), expect 1–2 from this objective — we provide 13 practice questions to prepare you well beyond it. (estimate)

13questions here

3free pages

5concepts

Questions 6–10

6application · medium
A data center engineer is configuring OSPF on a Junos device. The device has multiple loopback interfaces, and the engineer wants to ensure that the OSPF router ID is stable and predictable. The engineer has already configured the loopback interface lo0.0 with the address 10.255.255.1/32. Which configuration will guarantee that OSPF uses this address as the router ID?
Select an answer first
7foundation · easy
An OSPF neighbor is stuck in the ExStart state. Which configuration issue is the most likely cause?
Select an answer first
8application · medium
A network engineer is configuring BGP on a Junos router. The router will peer with two different service providers, each with a different AS number. The engineer wants to use peer groups to simplify the configuration. How should the engineer configure the peer groups?
Select an answer first
9foundation · easy
Which operational command displays the OSPF link-state database (LSDB) on a Junos device?
Select an answer first
10application · medium
An engineer is troubleshooting an OSPF adjacency issue between two Junos routers. The neighbor state is stuck in ExStart. The engineer suspects a mismatch in OSPF parameters. Which command should the engineer use to verify the OSPF interface parameters on both routers?
Select an answer first

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Configuration and Monitoring JN0-281 Practice Questions (Page 2)

Questions 6–10

An OSPF neighbor is stuck in the ExStart state. Which configuration issue is the most likely cause?

A network engineer is configuring BGP on a Junos router. The router will peer with two different service providers, each with a different AS number. The engineer wants to use peer groups to simplify the configuration. How should the engineer configure the peer groups?

Which operational command displays the OSPF link-state database (LSDB) on a Junos device?

An engineer is troubleshooting an OSPF adjacency issue between two Junos routers. The neighbor state is stuck in ExStart. The engineer suspects a mismatch in OSPF parameters. Which command should the engineer use to verify the OSPF interface parameters on both routers?

Keep studying — Data Center Routing Protocols (BGP/OSPF)